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Sendr

climbing coach, bouldering logbook & hiking maps

### 🧗‍♂️ Progress — not just record. Sendr is the complete outdoor toolkit that bridges the gap between climbing, bouldering, and hiking. Built for climbers who want to track their outdoor adventures, train smarter, and keep safe on the wall and the trail. Unlike generic fitness trackers, Sendr integrates interactive offline maps, deep climb/hike analytics, and a personal AI coaching assistant to help you break through your grade plateaus. --- ### 🚀 Key Features * **Climbing Logbook & Gym Tracker**: Log sport, trad, bouldering, and alpine sends in seconds. Supports all global grading systems (V-Scale, Fontainebleau, French, YDS) and allows users to upload and play video beta. * **Offline Topo & GPS Mapping**: Cache satellite, street, and topographic contour maps directly on your device. Navigate approaches safely, even when cell signal completely drops at the crag. * **Climbing Coach**: Sendr analyzes your logged sends to calculate your baseline, target realistic 6-month grade goals, review your climbing form clips, and estimate redpoint send probabilities using real-time weather and friction conditions. * **Smartwatch Sync & Wearables**: Sync approaches, hikes, and biometrics directly to Garmin, Wear OS, and Suunto devices via GPX files. * **Safety Beacon**: Setting off solo? Set a return check-in timer. If you miss it, Sendr automatically triggers a background cloud alert to send your exact GPS coordinates to your emergency contacts. --- ### 💻 The Tech Stack Sendr is built using modern mobile technologies designed for offline resilience and performance: * **Frontend**: Flutter (Dart) — targeting multi-platform performance and responsive maps. * **Backend & DB**: Firebase Firestore (utilizing offline-first local cache queries), Firebase Cloud Functions, and Firebase Cloud Storage for high-speed video beta hosting. * **Health Integrations**: Google Health Connect API. * **AI Engine**: Gemini 2.5 Flash for logbook analysis, form reviews, weather predictions, and conversational coaching. --- ### 🔗 Join Us * **Website**: https://sendr.rocks * **Download on Google Play**: Search for "Sendr - Climbing & Bouldering"